I agree ________ is good to eat lots of fruit and vegetables.
— I hear your pen friend is visiting Suzhou at present. Is it the ______ time for her?— Yes, and she will come for a fourth time next summer.
They spend too much time ________ their homework.
Why the modern city with us? I’m sure we can have a good time there.
Please keep quiet, everybody! I have important to tell you.
Look, the man under the tree ________ our maths teacher Mr. Wang.